score = int(input())
levelList = [600,800,1000,1200,1400,1600,1800]
level = 8

for i in range(7):
 if score < levelList[i]:
  break
 else :
  level = level - 1
print(level) score = int(input()) score int(input()) int input() input levelList = [600,800,1000,1200,1400,1600,1800] levelList [600,800,1000,1200,1400,1600,1800] 600 800 1000 1200 1400 1600 1800 level = 8 level 8 for i in range(7):
 if score < levelList[i]:
  break
 else :
  level = level - 1 i range(7) range 7 if score < levelList[i]:
  break
 else :
  level = level - 1 score < levelList[i] score levelList[i] levelList i break level = level - 1 level level - 1 level 1 print(level) print level level = level - 1 level - 1 level score = int(input()) int(input()) score level = 8 8 level levelList = [600,800,1000,1200,1400,1600,1800] [600,800,1000,1200,1400,1600,1800] levelList
score = int(input())
levelList = [600,800,1000,1200,1400,1600,1800]
level = 8

for i in range(7):
 if score < levelList[i]:
  break
 else :
  level = level - 1
print(level)